Kailboad-truck



J. F. ROGERS. GAR TRUCK.

No. 6,901. Patented Nov. 27, 1849.

JOHN F. ROGERS, OF TROY, NEWV YORK.

RAILROAD-TRUCK.

Specification of Letters Patent, No. 6,901, dated November 27, 1849.

To all whom it may concern Be it known that I, JOHN F. ROGERS, of Troy,in the county of Rensselaer and State of New York, have invented certainnew and useful Improvements in the Construction of Railroad-Oar Trucks;and I do hereby declare that the following is a full, clear, and exactdescrition of construction and operation of the same, reference beinghad to the accompanying drawings, making a part of this specification,in which- Figure 1, is a longitudinal side elevation, of the truck; Fig.2, a sectional view thereof through the journal box, springs, and partof the frame of the truck; Fig. 3, a longitudinalvertical view of thebalance beam; and Fig. 4, a sectional view of a part thereof, at thedotted line 00 00, of Fig.- 1; the same letters indicating like parts inall the figures.

The nature of my invention consists in arranging spiral springs withinpockets, or tubular casings, and combining said pockets and the journalbox into one piece, in such a manner as that the weight of the car shallsit upon the springs; I also combine spiral springs in the balance beamwithin similar pockets, in such a manner as to support the body of thecar thereon. In this arrangement of trucks, each wheel, in its verticalaction, is free from the other wheels of the car and possesses greatlateral stiffness, and is a cheaper mode of construction than any otherwith which I am acquainted.

The description is as follows: (a,) is the frame of the truck; (I), 1),)the spring pockets, which contain the springs, and cast solid with thejournal box (0,) and have guide bolts, (cl, (Z,) extending through theircenters, thence through to the upper surface of the frame, and with thebraces (e & 7",) are held in their proper position;

(9, 9,) are cast boxes, havingrecesses at (h, /b,) that allow thepockets to work up and down therein for the purpose of giving freeaction to the springs; in Fig. 3, I represent the balance beam,suspended in swing stirrups (as) in order to give it a lateral movementto facilitate the turning of curves; this being a well known device, afurther description is not deemed necessary; the beam is divided in twoparts (i, i) which have spiral springs inserted in and between them inpockets (o, 41,) attached to the upper part of the beam, and workinginto the lower part in the vertical actions; (7:, 70,) are bars whichare made fast to the lower part of the beam, and extend under a part ofthe truck frame, thereby rendering the lower part of the beam free froma vertical motion, while the upper part of the beam is free to theaction of the springs. By this new arrangement it will be readily seenthat it is greatly simplified, is cheap in its construction, andeflicient in its operation, and is rendered free from serious accidentsin case the springs break as in other modes of construction for thepockets will retain the respective parts in place.

Having thus described the nature of my invention, what I claim thereinas new, and desire to secure by Letters Patent, is

The arrangement and combination of the journal boxes (0,) with thespring casing, or pockets (6, 7),) through which bolts are aflixed tothe frame and acting as guides to the boxes the whole being constructedand arranged in the manner and for the purpose substantially the same asherein specified.

JOHN F. ROGERS.

)Vitnesses R. ORUIKSHANK, E. L. BRUNDAGE.

